11th Class (1st Year HSSC-I) Physics MCQs Practice Examination

Question 1

Which of the following is a fundamental unit in the International System of Units (SI)?

Accepted Answer

Kelvin

Answer

Joule

Answer

Newton

Answer

Watt

Question 2

The dimensions of gravitational constant 'G' are:

Accepted Answer

[M^-1 L^3 T^-2]

Answer

[M L^2 T^-2]

Answer

[M^-1 L^2 T^-2]

Answer

[M L^3 T^-1]

Question 3

Significant figures in the measurement 0.00450 kg are:

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 4

If the error in the measurement of radius of a sphere is 2%, what is the maximum percentage error in the calculated volume of the sphere?

Accepted Answer

6%

Answer

2%

Answer

4%

Answer

8%

Question 5

Which of the following pairs has the same dimensions?

Accepted Answer

Momentum and Impulse

Answer

Work and Power

Answer

Stress and Strain

Answer

Pressure and Force

Question 6

The base unit of luminous intensity in SI is:

Accepted Answer

Candela

Answer

Mole

Answer

Steradian

Answer

Weber

Question 7

The number of significant figures in 5.400 x 10^5 is:

Accepted Answer

4

Answer

2

Answer

3

Answer

6

Question 8

Which of the following is a dimensionless quantity?

Accepted Answer

Strain

Answer

Planck's constant

Answer

Gravitational constant

Answer

Coefficient of viscosity

Question 9

Precise measurement is one which has:

Accepted Answer

Minimum fractional or percentage uncertainty

Answer

High accuracy

Answer

No systematic error

Answer

Maximum absolute error

Question 10

In a formula relating physical quantities, if the dimensions on both sides are the same, the equation is:

Accepted Answer

Dimensionally correct

Answer

Definitely correct

Answer

Incorrect

Answer

Always experimentally verified

Chapter-wise MCQs Practice